Abstract: A process and apparatus for finishing the surface of a guide roller uses a drive belt under tension to ensure a uniform surface finish. Prior to surface machining, bearings at el. are inserted into the central bore of a guide roller sleeve to form a guide roller assembly. The assembly is mounted loosely on a stationary shaft and driven to rotate by an endless drive belt at a known tension. A cutting bit machines the outer surface of the sleeve as it rotates. The bit pressure against the sleeve is less than the frictional force of engagement between the guide roller and the belt.

Abstract: A rotator cutter machine for cutting an end off rolls of paper which comprises a chain saw for cutting the paper roll, a vertical travel carriage for supporting the chain saw, a horizontal travel carriage connected to the vertical travel carriage by vertical guide posts, horizontal guide rails for guiding the horizontal carriage movements, a worm mechanism for moving the horizontal travel carriage back and forth horizontally, a vertical drive pulley and chain for moving the chain saw vertically into cutting position and into release position, a power roll and a free riding roll supporting the paper roll and separated by a groove which receives the paper roll, kick out mechanism for kicking the paper roll out of the groove between the power and free riding rolls after the paper roll has been cut, a pair of core end supports each having a swivel ball joint for aligningly supporting the paper roll while being cut, and a stabilizer attached to both ends of the chain saw to stabilize the chain saw as it cuts throu

Abstract: A steady rest is disclosed for alternatively supporting the interanl and external surfaces of a tubular workpiece during a machining operation. Each outer end of a plurality of movable fingers includes first and second workpiece contact devices such as rollers. The second contact device is offset from the longitudinal axis of the finger so that it may engage the inner periphery of the workpiece. The opposite inner ends of the outer fingers ride in slots having opposing arcuate cam surfaces. One cam surface provides backup support for its finger when externally contacting the workpiece while the other cam surface insures stability when its finger is contacting the inner periphery of the workpiece.

Abstract: Cutting tools 12 are individually connected in common to rollers 2b supporting a rotationally driven tube T to be cut. The tools and rollers are paired mechanically such that the cutting edge of each tool and the tangent point G between the associated roller and the surface of the tube lie in the same radial plane passing through the longitudinal axis T--T of the tube. This arrangement makes it possible to maintain constant the penetration depth of the cutting tools into the surface of the tube even if the tube is oval or elliptical.

Abstract: The top seal parts of bottle-like containers made by blow-molding a flexible synthetic resin are cut off by nonrotatably supporting each container, pressing from one side a cutting edge of a cutter against a specific cutting line on the top part of the container, and rotating the cutter around the top part thereby to cut off the top seal part. This process can be carried out by an apparatus comprising a plurality of combinations of mechanisms, each combination comprising a fixing device for nonrotatably and fixedly supporting a container, a cutting head which can be fitted onto the top seal part of this container and can be driven in ascending, descending, and rotating movement, and cutting head drive.

Abstract: A method and an apparatus for packaging paper rolls (2), wherein a wrapper sheet (1) of such a size as to exceed the axial length of the roll is wrapped around the roll and the width of the wrapper sheet is reduced to a size corresponding to the length of the roll by removing the part (5, 6) of the wrapper sheet which extends over the ends of the roll. The header sheet (14, 15) which is bigger than the end surface of the roll, is placed on the ends of the roll and reduced to a size corresponding to the diameter of the roll or smaller by removing at least the part of the header sheet extending over the end surface. Thereafter the header (14, 15) and the wrapper (25) are secured to each other so that a tight joint is formed.

Abstract: A cast iron pipe T with a minimal preset diameter is supported by a frame 1 equipped with support rollers 2, 6, the roller 2 being driven to rotate the pipe about axis X-X. Cutting is executed with a tool 16 coupled to the carrier roller 2. The rollers are disposed below the pipe, and the pipe is held against the rollers during cutting by a pressing roller 5 disposed inside the pipe end. The pressing roller is shifted downwardly in relation to the carrier roller.

Abstract: A metal saw cutter has a first motor for rotating a workpiece to be cut and a second motor for rotating a metal saw independently of the first motor.A control apparatus of the metal saw cutter has a detector for detecting variations in an electrical output depending on the variation of the cutting resistance acting on the metal saw during cutting, and a controller for controlling the speed of the second drive in accordance with the detection signal from the detector.

Abstract: A method and apparatus for armature stripping of wire from an electric motor armature having a shaft, a core including slots for winding wire therein and a commutator to effectively, efficiently and inexpensively salvage and recycle the armature is disclosed. The method includes the step of rotating the armature on its shaft on a carrier while simultaneously cutting the wound wire between the commutator and core a given depth with a rotating circular saw so that the combined steps of rotating the armature and cutting with a circular saw cuts all wires of the armature so that the wire may be easily removed from one end of the armature. The apparatus features a frame, a rotating circular saw and a guided carrier for loading and unloading a plurality of armatures on the carrier in a side-by-side relationship and rotatable thereon. The carrier is manually guided across the rotating circular saw so that the circular saw cuts the wound wire between the core and commutator a given depth.

Abstract: Apparatus for successive cut-off operations at axially spaced locations along an elongated tubular workpiece wherein the workpiece is rotated during cut-off operations and successively advanced axially between such operations. The cut-off operations occur at a work station where a front portion of the workpiece is successively advanced, rotated and severed with an elongated portion of the workpiece extending rearwardly from the work station. A pair of elongated guide and support rails extend adjacent the rearwardly projecting portion of the workpiece and mount a workpiece supporting mechanism which is freely moveable therealong toward and away from the work station. The mechanism comprises a freely rotatable collet assembly adapted to grip and release the workpiece. Operating means for the collet assembly comprise a handwheel, a gear train, and a shell cam which is rotatable through a limited angle and axially moveable at the urging of the handwheel and gear train.

Abstract: A tire splitting apparatus including a frame, a powered drive roll mounted on the frame for rotating a tire, a pressure roll for engaging the tire with the drive roll, and a knife for insertion into the casing while it is rotating for cutting it into halves. A guide is clampable for contact with both side walls of the tire to align and steady the tire so that the knife will cut repeatedly in the same track. A bead support carries substantially all of the weight of the tire during the splitting operation to allow repeated revolutions of the tire as necessary to complete the splitting process.

Abstract: A plastic bottle is held from a dome molded above the bottle neck and the dome-held bottle is moved along a horizontal groove by a moveable belt. A heated knife is held against the turning bottle neck and cuts the dome and undesirable flashing from the bottle at the top of the neck.

Abstract: A sleeve grip for a pipe is radially expandable by axial compression from a bolt-nut system. One of the elements 8 of the bolt-nut system 13 is connected to a bidirectional drive motor 23 inducing rotation in the cylindrical pipe 2 and the other element 24 to the movable disc 25 of a brake 14. Thus, by simple tightening or slackening of the brake 14 and activation of the motor 23 inducing rotation in the pipe, it may be held by the expandable sleeve grip 12 or released.

Abstract: An apparatus for forming an aeration groove in a filter which is composed of a body of entrainment-type fiberous filter material and a layer of plug wrap paper circumferentially about the body. The apparatus is comprised of a rotatable filter drum for conveying a series of the filter plugs in sequential order past a grooving station and a forming means within the drum at the grooving station for forming at least one peripheral groove in each filter plug conveyed through the station. The forming means effects a groove which extends through the plug wrap paper in order to communicate the exterior of the filter plug with the body of filter material. In addition, a resilient guide is located at the grooving station opposite to the forming means in order to roll the filter plugs through the grooving station. In this way, rolling of the filter plugs in enhance and the formation of a complete annular groove is ensured.

Abstract: The air dilution filter of the cigarette is provided with an annular zone in the plug wrap paper which enables air to pass directly into the fibrous body of the filter material after passing through apertures in the tipping paper.The annular zone can be comprised of a groove which is fabricated by a pair of rotating knives and a rotatable spacer with radial cutting edges which rout out material from each filter plug during conveyance of the plug on an alignment drum of a cigarette making machine. Alternatively, a plurality of closely spaced rotating knives which cut through the plug wrap paper only may be used to form a series of closely spaced annular grooves or slits in the filter periphery.

Abstract: An apparatus for radially cutting cylindrical material including three rollers mounted with a first frame which is pivotable about an axis of one of the rollers with respect to a second frame which carries a saw arbor. One of the rollers is driven in rotation by a motor, and is geared to the saw arbor to drive the saw blades in rotation. A second roller is movable with respect to the first frame and the first roller, and a third roller is mounted on a hydraulic cylinder to clamp the three rollers against the exterior surface of a cylindrical material. Axial grooves are located on the drive roller to facilitate driving of the material, and circumferential grooves are provided on one of the other rollers to prevent axial displacement of the material subsequent to clamping. A ball screw unit pivots the first frame with respect to the second frame to cause the saw blades to engage the material and make radial cuts into the material. A process for radially cutting cylindrical material is also disclosed herein.

Abstract: The flash is removed from a freshly molded recorded disc by first bringing a knife against the edge of the disc and rotating the disc about its center to remove the major portion of the flash. A rotary cutter is then brought into contact with the edge of the rotating disc to remove the remaining portion of the flash. The rotary cutter provides the disc with a smooth edge and allows an accurate control of the diameter of the disc. The cutter is mounted on a pivotal bracket which is selectively moved toward and away from the disc by means of an air cylinder and piston which is connected to the bracket.

Abstract: The invention relates to methods and apparatus for making rings from tube stock (10) by a part-off rolling tool (12,15) which is advanced radially into the tube stock to form successive rings, e.g. annular blanks for subsequent roll forming into bearing rings. The tube stock is indexed forward after separation of each ring. Errors in the length of tube stock indexed forward each time are contained by forming a locating groove (47) on the tube stock by means of a groove-rolling tool (40) set at an appropriate axial distance from the part-off rolling tool (12) and moved radially with it. In the next cycle the groove (47) automatically centers the part-off tool as the latter begins its advance into the tube stock, so as to give the correct axial length of the finished ring. The part-off tool is stopped before fully penetrating the tube wall, which is then machined. Final separation takes place during this machining or in a subsequent finishing pass by the part-off tool.

Abstract: The present invention relates to a machine and method for slitting elongated rolls of web material rolled upon a tubular core utilizing a circular double edged knife blade in combination with a circular saw blade. Both blades are rotatably mounted within a rigid common carriage. The carriage is mounted for movement parallel to the axis of the elongated roll to a plurality of cutting locations along the length of the roll and for movement in a cutting stroke perpendicular to the axis of the elongated roll. The machine and method of the present invention may also utilize a separate knife blade to cut the core of the roll.

Abstract: Method and apparatus for inverting a torroidal article such as a tractor tire, comprising: a base assembly; a first frame assembly pivotably rearwardly attached to the base assembly; a second frame assembly pivotably attached to a forward portion of the first frame assembly; a tire holder attached to the second frame assembly; and grappling means for holding an edge portion of a tire to be inverted relative to the base assembly. The tire holder is rotatable to permit the removal of a rim portion of the tire on the tire holder by a cutting blade fixed on a boom attached to the apparatus. Rotation of the tire holder is actuated by a hydraulic motor, and hydraulic cylinders are used to pivot the first frame assembly and the second frame assembly. The apparatus is made portable, with a minimum of necessary external support systems, such as a hydraulic fluid pump. The article thus produced has a generally cylindrical shape, smoothed by clamping means, making it useful as a feed bunk for livestock.

Abstract: An electronic control system is arranged to supply appropriate electrical signals for controlling the rate of advancement of a cutting tool into a surface of a rotating billet for peeling and pulling a strip therefrom with a regulated thickness and tension.

Abstract: A machine for automatically cutting and dividing of cylindrical sleeves guided and supported on a drawoff spindle by means of a plurality of coaxially arranged rotary knives. The machine includes a transport arrangement for transporting an uncut sleeve onto the drawoff spindle where it is cut by the rotary knives and then transporting the now-divided sleeve onto an adjustable carrier sled which is transversely movably mounted relative to the axis of the drawoff spindle. The transport arrangement includes a pair of end pressure members which are movable toward and away from each other and which are adapted to grip the cut and uncut sleeve therebetween. The carrier sled includes a pair of adjustable parallel sleeve-receiving troughs which are adapted to be reciprocally mounted between precisely-defined relative positions with respect to the carrier sled and a rotary knife-supporting beam.

Abstract: An apparatus and method is adapted to provide the filter of a cigarette with an annular perpheral groove to enable air to pass directly into the fibrous body of the filter material after passing through apertures in the tipping paper. Ordinary plug wrap paper instead of a high porosity tea bag paper to wrap the fibrous filter material.The annular groove can be formed by a pair of rotating knives and a rotatable spacer with radial cutting edges which rout out material from each filter plug during conveyance of the plug on an alignment drum of a cigarette making machine. Alternatively, a plurality of closely spaced rotating knives which cut through the plug wrap paper only may be used to form a series of closely spaced annular grooves or slits in the filter periphery.

Abstract: A method and apparatus are disclosed for forming a stack of neatly aligned sheets of microfoam plastic material from a web of microfoam material. The method and apparatus provide for supplying the web of material to a cutting station and transporting an edge of the material a predetermined distance beyond the cutting station, restraining motion of the web and captivating it at a location adjacent to the cutting station, and cutting the web in a transverse direction. The web advancement, restraint and captivation, and cutting are repeated until a predetermined number of sheets of the material have been accumulated in a stack. The stack is then released from captivation and is conveyed from the cutting station.

Abstract: A machine for turning successive axially fed work pieces at both ends simultaneously by means of a double-ended segmentally actuated collet construction wherein one collet has a fixed collet chuck and the other has a movable collet chuck; and rigidly controlled and guided means to move the latter to simultaneously close both collets in combination with a tool slide which is considerably longer than the distance between the collets and along which are adjustably mounted a plurality of turning tools, and which is actuated in timed relation to the feed and collet actuation. A single cam shaft with adjustable cams controls all motions.

Abstract: A simple, economical, drum-type tube cutting machine is disclosed which employs a conventional drum for high-speed automatic cutting of ordinary tubes and a special drum for high speed cutting of tubing which could not otherwise be cut satisfactorily because of special problems due for example to flimsy walls, excessive diameter or excessive wall thickness. The special drum employs a series of replaceable generally semi-cylindrical vanes which fit the tubes to prevent them from collapsing or moving out of position during the cutting operation and to hold them in position after they are cut so that internal supporting mandrels are not needed. The internal radius of the vanes is selected to match the external radius of the tubes being cut and is changed when the tube radius is changed.

Abstract: An apparatus for recovering in usable form the undamaged portion of a damaged roll of paper. The roll of paper is supported on its core so as to permit unreeling. A pivotable cutting assembly is positioned so that its power driven blade cuts the undamaged portion away from the damaged portion as it is unreeled. A roller means is positioned so as to support from below the damaged portion of the roll.

Abstract: Method and apparatus for slitting rolled material. The material is mounted adjacent to a slitting means which is oscillated substantially tangential to the surface of the rolled material being slit to improve the slitting action. Radially adjustable clamping jaws engage the outer surface of the rolled material, the adjustment of which is controlled by endless chains. A radially expandable supporting shaft is included for engagement with the inner surface of the rolled material for securely mounting that material.

Abstract: Apparatus and method for fluid jet cutting of a roll of material in situ, e.g. a multiplicate wound roll of material, by which a fluid jet nozzle and a roll of material are rotated relatively to each other about an axis with the roll of material in radially inwardly disposed relation to the nozzle while a fluid jet, e.g. liquid jet, exiting from the nozzle is directed at a selective axial point along the extent of the roll of material to cut circumferentially into and through the roll of material in situ and the spent fluid is concomitantly collected radially inwardly of the roll of material, preferably in an arrangement having fluid jet cutter means including such nozzle, support means including mandrel means, e.g.

Abstract: Method and device for loading cylindrical articles in a processing apparatus including a rotatable starwheel with pockets defined therein which carry the cylindrical articles and a plurality of mandrels aligned with the pockets for rotation with the starwheel such that the cylindrical articles may be axially transferred from the pocket onto the mandrel for processing, the device primarily comprising a plurality of conduit outlets which may be intermittantly connected through valve means to a compressed gas source to produce a jet of compressed gas at predetermined positions in the rotation of the starwheel pocket and onto the mandrel, and more preferably further including a vacuum passage through the mandrels which may be selectively connected to a vacuum source to work in synchronous with the compressed gas jet to provide both an internal vacuum and an external gas jet urging the cylindrical article onto the mandrel.

Abstract: A tool for cutting tubular or solid cylindrical workpieces such as rigid polyvinyl chloride or like rigid resin pipes, soft metal pipes, etc. transversely thereof comprises a main body having a bearing portion including a pair of freely rotatable members, a vertically movable cutter arm pivoted to the main body and provided with a pair of rotary cutters opposed to the rotatable members in corresponding relation thereto, a cutter arm lifting assembly for moving the rotary cutters toward or away from the rotatable members, and an intermittent feeder mounted on the cutter arm for rotating the rotary cutters in the same direction. The workpiece is placed on the bearing portion of the main body and set in position substantially at right angles to the rotary cutters. After the edge of one of the rotary cutters has been brought into contact with the workpiece, the cutter arm lifting assembly is operated to hold the workpiece between the bearing portion and the rotary cutter.

Abstract: An apparatus for severing tire carcasses of any diameter through the tread portion to reduce the carcass to a plurality of annular disposable rings. The apparatus further provides a support for the tire carcass as well as a driving means therefor with the tire support urging the tread portion up into a knife that is disposed tangentially of the tread portion and counter to the rotation of the tire carcass.

Abstract: The apparatus includes a cradle for holding long tubes desired to be cut into individual tubes of shorter length. The cradle is generally cylindrical and mounted for rotation about its axis. Tubes are mounted in the cradle at a loading position, and a controller actuates a motor for driving the cradle inrotation to a cutting position. A plurality of saws are mounted on a shaft extending parallel with the axis of the cradle and rotating at high cutting speed. When the cradle is revolved to bring the tube to the cutting station, the tube is engaged by a surface belt drive to spin the tube in the cradle for cutting. In the case of tubes having greater wall thickness, the cradle is stopped momentarily just as the tubes are brought into cutting relation with the saws so that a partial peripheral cut is made while the cradle is stopped. The cradle is then continued to be rotated to complete the cut and to bring the cut tubes back to the original position at high speed.

Abstract: An apparatus for cutting a plurality of selected lengths from a rod-like workpiece. A plurality of annular saws or mills have cutting teeth formed on the inner annuli which have diameters greater than the diameter of the workpiece. The workpiece is passed through the annuli such that the distance between one saw and the end of the workpiece defines one selected length while the distances between each pair of adjacent saws define the other selected lengths. The saws and the workpiece are relatively rotated in opposite directions, while concurrently the saws are moved transversely to bring the teeth of the saws into cutting engagement with the workpiece. If the apparatus comprises two annular saws, the annular saws are moved in opposite transverse directions so that the saws are concurrently engaging opposite sides of the workpiece. The transverse movements of the saws are controlled such that the saw nearest the end of the workpiece completes its cut first.

Abstract: An end-trimming apparatus for roll-like products. The apparatus trims both ends of a roll comprising a sheet-like material wound up on a core, particularly, stretchable one such as plastics film, by cutting off the irregularity of both the ends, finishing them into flat faces. It comprises a conveying means for carrying rolls horizontally to a given location, a supporting means of a pair of chucks for supporting the roll at both the ends, while providing it with a rotation in the winding direction of the roll, and a cutting means provided close to the pair of chucks, including a pair of disk cutters arranged co-axially and having respectively separate shafts parallel with the shafts of the chucks, the disk cutters being capable of moving toward and away from each other and of reciprocating in the direction at right angle to said toward-and-away motion.

Abstract: In apparatus for converting tape roll stock into narrower roll segments, and which includes a rotatable cutting blade and means for automatically advancing the blade to engage and cut a revolving roll of tape and means for retracting the blade between sequential cutting operations in a repetitive process, a clutch mechanism for locking the blade on its shaft against rotation during initiation of entry of the blade into the roll stock, thereby to avoid adverse effects such as nicking and double cutting due to lateral runout of the cutting blade edge during blade rotation.

Abstract: A tire slitting apparatus for slitting tire carcasses circumferentially into segments comprises a frame with a tire slitting head mounted thereon to fit inside the body of a tire, and tire drive means to rotate the tire around the tire slitting head. Cutting means are mounted on the tire slitting head to slit the tire and external guide means are positionable against the side walls of the tire to guide and stabilize it during the slitting.

Abstract: A tool-clamping device especially for a pipe cutoff machine, and a method of setting up a pipe cutoff machine. The clamping device includes a base and an overlying cap between which the tool is clamped. Spring means within the base and cap urge the cap to a tool-releasing position. Hydraulic means within the base pull the cap to a tool-clamping position against the action of the spring means. In setting up the machine, a tool is lightly clamped in the device, moved into contact with a pipe chucked in the machine to adjust the overhang, and firmly clamped for cutting.

Abstract: A pipe cut off saw comprising a pipe cradle and a cutting means pivotally secured adjacent said pipe cradle such that the pivot point is aligned with the center line of the pipe so that the cutting means may be rotated about the pipe to cut off the end of the pipe. The pipe cradle has elevating apparatus to change the angle of the center line relative to the pivot point of the saw to permit miter cuts on the pipe.

Abstract: A device is provided which permits the simultaneous cutting or bisecting of a plurality of tires. Large, vertically mounted, circumferentially slotted wheels each adapted to receive a circular cutting blade in each slot, receive the tires. The cutting blades are mounted overhead on a shaft which traverses a pivotally mounted beam which is raised and lowered by a piston. A brake is provided for engaging the tread of the tire, and tensioning means engages the lower rim of the tire to exert a downward pressure when the overhead beam is lowered. Turning power is provided to the cutting blades by means of belts or chains which connect a motive source with the shaft on which the blades are mounted. Collars on either side of the cutting blades engage the tire tread when the blades are lowered to turn the tire. A plurality of slots and corresponding cutting blades can be provided for each wheel with spacers to determine the width of sections cut from the tire.

Abstract: A pipe cutting machine having a pair of driven rollers and a free wheeling cutter wheel with novel means for advancing the cutter radially into the work. A single column with rack and key adjustment arrangement accommodates different pipe diameters rapidly. The cutter advancing hand lever operates with an eccentric for large mechanical advantage. Unique hole, keyway and split-ring clamping means are included for properly aligning the cutter wheel axis parallel to the drive roller axes at any predetermined column height. The rollers are both driven from an all spur (or parallel shaft helical) gear arrangement and are supported from a cantilevered spindle and bearing arrangement.

Abstract: Mechanism to cut sections for furnace pipe elbows from a tube. The mechanism includes means for relatively axially shifting a cutter means and the tube being cut, and positioning means for turning the cutter means so as to track along an oblique cut around the tube. The positioning means includes a wobble plate whose oscillation is followed by means which turns the cutter means in order to track the cutter path.

Abstract: Apparatus is disclosed for cutting open a blow-molded container such as a refuse can. A pair of knife blades are pivotally mounted to a knife which is pivotal about an axis orthogonal to the axis of pivot of the blades. The knife has a pair of cam followers for guiding it around the container by following a cam track conforming to the shape of the article.

Abstract: The length of segments cut from steel blooms that can be conveniently removed from a pass line in which a sizing gauge is positioned in close aligned relation to the pass line is increased by mounting the sizing gauge on a movable carriage. Support rollers forming a bloom receptacle are positioned on the carriage adjacent the sizing gauge and means are provided to move the carriage to each of two positions whereby either the sizing gauge or the receptacle is aligned with the bloom pass line.

Abstract: A washer cutting machine is disclosed wherein a sleeve of an elastomeric material suitable for use as a washer is placed on a mandrel and rotated. A predetermined length of the sleeve extends beyond the end of the mandrel, and a knife-edge moves in a radial direction to cut a ring from the end of the sleeve of a width such that it may be suitable for use as a washer. The machine is programmed so that the steps of loading the sleeve on the mandrel, cutting a washer from the sleeve, advancing the sleeve the width of a washer to be cut at the completion of each cutting operation, and stopping operation of the machine after the last washer has been cut therefrom, are all carried out automatically.

Abstract: Apparatus for cutting rolls of sheet material is provided with a pair of longitudinally stationary parallel knife blades positioned on opposite sides of a band saw blade which moves longitudinally to remove swarf from between the knife blades. The knife blades are supported on a blade carried band which is held under tension between spaced apart points on a mounting frame. A longitudinal gap in the knife blade exposes a section of the band saw blade to cut the core of a roll of sheet material.

Abstract: Method and apparatus for trimming cylindrical articles, particularly can bodies, to a predetermined longitudinal length by sequentially feeding such cylindrical articles into carriage pockets rotating around a main shaft synchronously with an axially aligned plunger at one end of each carriage pocket and a similarily aligned mandrel at the other end of the carriage pocket. At predetermined positions, the plunger moves into the aligned carriage pocket and pushes a cylindrical article therein onto an aligned mandrel which is rotated around its own axis as well as around the main shaft. As the mandrel rotates, a fixed arcuate blade which cooperates with a cutting edge defined in the mandrel is engaged to shear an annulus portion from the end of the cylindrical article thereby trimming the cylindrical article to a predetermined and repeatable length. Upon severing of the annulus, a fixed cutter blade engages the annulus to transversely cut the annulus into an open ring.

Abstract: Apparatus for cutting tire casings. A cutter engages the crown of a tire casing from one side, while the crown is supported by crown support means on its opposite side. Guide means cooperating with the crown support means holds the tire casing while cutting progresses. A biased knife acts as the cutter which cuts the casing from the inside.

Abstract: .[.Method and apparatus.]. .Iadd.Apparatus .Iaddend.for inverting a torroidal article such as a tractor tire, comprising: a base assembly; a first frame assembly pivotably rearwardly attached to the base assembly; a second frame assembly pivotably attached to a forward portion of the first frame assembly; a tire holder attached to the second frame assembly; and grappling means for holding an edge portion of a tire to be inverted relative to the base assembly. The tire holder is rotatable to permit the removal of a rim portion of the tire on the tire holder by a cutting blade fixed on a boom attached to the apparatus. Rotation of the tire holder is actuated by a hydraulic motor, and hydraulic cylinders are used to pivot the first frame assembly and the second frame assembly. The apparatus is made portable, with a minimum of necessary external support systems, such as a hydraulic fluid pump.

Abstract: A remotely operable, portable cutting apparatus detachably secured to the workpiece by laterally spaced clamp assemblies engageable with the workpiece on opposite sides of the intended line of cut. A reciprocal cutter head is mounted between the clamp assemblies and is provided with a traveling abrasive cutting wire adapted to sever the workpiece normal to the longitudinal axis thereof. Dust and debris are withdrawn from the cutting area by a vacuum force through a nozzle mounted on the cutting head.